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发明名称
Telephone system
摘要
申请公布号
US2955160(A)
申请公布日期
1960.10.04
申请号
US19560561867
申请日期
1956.01.27
申请人
AUTOMATIC ELECTRIC LABORATORIES, INC.
发明人
LOMAX CLARENCE E.
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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